Question

(x-4)²+3(x+2)²=(2x-3)²
Решить уравнение с проверкой

Answer 1

(x-4)²+3(x+2)²=(2x-3)²
x²-8x+16+3(x²+4x+4)=4x²-12x+9
x²-8x+16+3x²+12x+12=4x²-12x+9
x²-8x+3x²+12x-4x²+12x=9-12-16
16x=-19|:16
x=-1 3/16